Question

Решите уравнения 2(2/5z+1)+3 1/3=4-1/2(4/5z-1) 5-(1 1/2 v+1/3)6=2 1/3v-5 1/2

Answer 1

 2(2/5z+1)+3 1/3=4-1/2(4/5z-1) 
4/5z+2+10/3=4-2/5z+1/2
4/5z+2/5z=4-2-10/3+1/2
6/5z=10/6-20/6
6/5z=-5/3
z=-5/3*6/5
x=-2
5-(1 1/2 v+1/3)6=2 1/3v-5 1/2
5-9v-2=7/3v-11/2
7/3v+9v=3+11/2
34/3v=17/2
x=3/4